hi, i just buy a new tv (plasma toshiba 42dpc85) i only plug on it a dvd via componant for video and right left for audio in the tv, the second thing on it is cable via s-video and right left for audio, the problem whit the plasma is when i put the sound loud(50% +-) on the tv i hear a noise that came from the tv speakers, so i disconect the cable and the dvd and i hear again the noise .i dont have a power bar,and i dont thing it will help!, so what do you thing is the problem, it is normal! or maybe i have to call toshiba. the sound look like wave?

Disconnect everything and listen to the speakers when on the DVD input channel. If the noise is load - it's Toshiba, call the company.

If there no noise then connect the cable box and the cable box cables but still listen while on DVD input. If the noise appears it somehow comes from the box or through the cables - may be bad shielding.

hey i disconnect the dvd and the cable and the noise is still there, i plug the plasma in another mural catch again the same thing, so i call a toshiba technicien (under guarantee), the guy gone be here tomorrow to see what happend, i made a post tomorrow to letyou know!

so te tech guys was here ,everything is ok ,he told me that the amplifier in this unit whit all the WOW (special effect) on, is on maximum around 50% of the volume before it start to make noise, so what i did is turn off the WOW program!!!!!!!!. for now is ok, but i said to my wife to be prepared to see 2 new inwall w3 speaker whit a new amp denon dra-295.